diff --git a/src/modules/warp/warp.service.ts b/src/modules/warp/warp.service.ts
index 114405f..8bbd971 100644
--- a/src/modules/warp/warp.service.ts
+++ b/src/modules/warp/warp.service.ts
@@ -284,7 +284,7 @@ export class WarpService {
         try {
             const result = await this.execFixed(
                 '/usr/bin/curl',
-                ['--max-time', '5', '-fsSL', WARP_TRACE_URL],
+                ['--max-time', '5', '-4', '--interface', WARP_INTERFACE, '-fsSL', WARP_TRACE_URL],
                 8_000,
             );
 
diff --git a/test/warp-status.test.mjs b/test/warp-status.test.mjs
index b897939..cf8bac7 100644
--- a/test/warp-status.test.mjs
+++ b/test/warp-status.test.mjs
@@ -55,6 +55,7 @@ describe('WARP contract shape', () => {
         assert.match(service, /WGCF_RELEASES_API_URL/);
         assert.match(service, /WARP_ENDPOINT = '162\.159\.192\.1:2408'/);
         assert.match(service, /Endpoint = \$\{WARP_ENDPOINT\}/);
+        assert.match(service, /'--interface', WARP_INTERFACE/);
         assert.match(service, /normalizeWarpConfig/);
         assert.match(service, /stopRunningInterface/);
         assert.match(service, /install -m 600 wgcf-profile\.conf/);